the fifteenth episode of the twenty @ - @ third season of the american animated television sitcom the simpsons . it originally aired on the fox network in the united states on march 4 , 2012 . in the episode , bart is punished by homer after causing trouble . he gets revenge on his father by spray @ - @ painting images of him with the word " do ##pe " all over springfield . street artist shepard fair ##ey encounters bart one night and offers him a gallery show of bart ' s artworks . however , chief wig ##gum suddenly appears during the show and arrests bart for covering the town in graffiti . it turns out that fair ##ey is an undercover officer working
the fifteenth episode of the twenty @ - @ third season of the american animated television sitcom the simpsons. it originally aired on the fox network in the united states on march 4, 2012. in the episode, bart is punished by homer after causing trouble. he gets revenge on his father by spray @ - @ painting images of him with the word " dope " all over springfield. street artist shepard fairey encounters bart one night and offers him a gallery show of bart's artworks. however, chief wiggum suddenly appears during the show and arrests bart for covering the town in graffiti. it turns out that fairey is an undercover officer working